Horizontal Push · Intermediate
Flat Dumbbell Bench Press
- Movement pattern
- Horizontal Push
- Difficulty
- Intermediate
- Equipment
- Dumbbell, Bench
- Mechanics
- Compound
- Sides
- Bilateral
- Main plane
- Transverse
How to do the Flat Dumbbell Bench Press
Setup
Lie flat holding a dumbbell in each hand at chest level, feet flat on the floor.
Retracting and pinning the shoulder blades together and down is a deliberate technique that increases the pec's mechanical force angle — it is not automatic. A rep completes with the shoulder blades left protracted (rounded forward) too; that just transfers less force to the chest. Cue it explicitly, do not assume it happens.
Press the dumbbells up and slightly in until they nearly touch over your chest.
Lower under control to a comfortable stretch at chest level -- dumbbells allow more range than a barbell since there's no bar to stop the descent.
Start the press by contracting your chest first, not by pushing with the shoulders or arms -- which muscle initiates the movement measurably changes how much of the work your chest actually does.
Keep your shoulder blades retracted throughout, same as the barbell version.
Common mistakes
Letting the dumbbells drift too far out to the sides at the bottom, putting extra strain on the shoulder joint.
Using momentum to bounce out of the bottom stretch instead of controlling it.
Arching your lower back to shorten the range or move more weight -- it creates dangerous, uneven pressure on the spinal discs and can contribute to a herniated disc. Keep your glutes and upper back on the bench throughout.
Muscles worked
How the knowledge graph models this movement
Shoulder horizontal adduction
Elbow extension
Shoulder internal rotation